There are 2 options in php.ini you need in order to control the upload size:
upload_max_filesize = 100M post_max_size = 100M
Then also the plugin setting which it sounds like you've changed.
Welcome to the Q&A site for Question2Answer.
If you have a question about Q2A, please ask here, in English.
To report a bug, please create a new issue on Github or ask a question here with the bug tag.
If you just want to try Q2A, please use the demo site.